condition	mean	min	max
4 h after light	8.581886	8.352643	8.811129
8 h after light	8.534832000000002	8.085691	8.983973
12 h after light	8.3457845	7.303274	9.388295
4 h after dark	8.4690555	8.108101	8.83001
8 h after dark	8.8394005	8.055381	9.62342
12 h after dark	7.512067	7.512067	7.512067